Plow-colter



G. S. BRIGGS.

PLOW GOLTER.

{NoModelJ No. 313,651. Patented Mar. 1o, 1885.

IINTTnn STATES PATENT @Trina GEORGE S. BRIGGS, OF ROOKFORD, ILLINOIS.

PLOW-CO LTER.

SPECIFICATION forming part of Letters Patent No.3135l, dated March l0,1885.

Application filed March 15, 1884.

1'0 all whom, it 711km/ concern/e Be it `known that I, GEORGE S. BRIGes,of Rockford, in the county ot' Vinnebago and State of Illinois, haveinvented certain new .and useful Improvements in Plow-Oolters and theirAttachments, of which the following is a specification.

The purpose of this invention is so to construct the bearings ot' acolter that the dirt will be excluded therefrom, and that a moreeffective lateral support will be given to the colter as the bearingsbecome worn by friction, thereby preventing, to a great extent, thevacillati-ng motion ot' the same.

Reference being had to the accompanying drawings7 which form a part ofthis specification, it will be seen how my invention can best be madeand used. y

Figure l represents a view of a colter wit my improvement clamped onto aplowbeam. Fig. 2 represents a sectional View in the line m x of Fig. l.and top view of the beam shown in Fig. 1. Fig. 4 shows an innerclamping-plate. Fig. 5 shows front and back side views of a corrugatedwasher. Figs. 6 and 7 give an end view of the larger ends of the twosleeves shown in Fig. 2. Fig. 8 shows one-half of a combined hubandstrengthening-diskremoved from the sleeve A3 of Fig. 2.

VC represents the colter proper; A A', the ends of the yoke whichsupport it.

Az shows the bolt passing through the ends of the yoke and the otherparts and securing them together. Y

A3 and A4 are sleeves of an improved form fitting interiorly the bolt,which should have a short square neck to prevent the sleeve A4 fromrevolving, and extending from the middle of the bolt aforesaid to theyoke at each side. These sleeves are a stationary axis, whereon thecolter-hub revolves. The exterior corners of their outer ends are cutaway, so as to form an abrupt vertical shoulder at 7c and an S-shapedshoulder atj and t. The exterior corner of the larger end of sleeve A8is cut away, forming, with the exterior corner of sleeve A47 (marked62,) th-e transverse groove c.

Fig. 3 represents a back side` (No model.)

d is a cylindrical elevation, having in its center the hexagonaldepression ai.

a4 is a hexagonal elevation, the exact counterpart of a. The hub i andthe strengthening-disk c should be cast in one piece. The interior ofthe hub should be the exact counterpart of its corresponding sleeve. The

strengthening-disk c should be secured firmly to the colter by bolts,one of which is shown at c3.

A represents a colter-stem; B, a plow-beam of any size, of either .woodor iron; E, a clamp; F, a clamping'plate that may be used on the backside ofthe beam under the clamp; but the clamp can be used with entiresuccess without it.

F represents an inner clamping-plate, to be used ou the colter-bearingside of the plowbeam.

D shows an outer clamping-plate, having in each end a transverse slotcurved and of the proper width to receive the arms of the clamp E. Thecurve of the slots is an arc, so that, the end of either arm being held,the other arm will move'up or down in its slot freely. y

Immediately behind the letter D on the back side of the outerclamping-plate is a vertical semicircular groove. By raising the lowerarm of clamp E in Fig. l, the clamp will fit the smallest beam. Byraising the upper arm it will fit the largest beam. The front face ofthe clamping-plate about the slots is corrugated to receive thecorrugated faces of the washers E.

e c are the nuts to secure the plate to its clamp.

I put these parts together' in this manner Place the flat side of theinner clamping-plate, F', against the 4side of the beam B with thegroove f vertical. Place the stem A into the groove aforesaid. Thenplace the groove in the back of clamping-plate D, against the stem A.Place the arms of the clamp E through t-he slots in saidplate D, so thatthe upper arm shall rest against the top and the lower against thebottoni of the beam B. Pass the arms of clamp E through the washers E,adapting the corrugated faces to those on the face of plate'D. Turn onthe nuts e e, the non rotating sleeves or journals As A,

`andthe eolter-steln will be held securely in having S-shaped shoulders,substantially as platee. set forth.

I claim as new and desire to secure by Lot- GEO. S. BRIGGS. 5 tersPatent- Witnesses: The combination, with the rotating oolter E. S.GHAMBERLAIN,- C and the combined hubs and disks t' c', of

ALFRED E. HoLT.

